Consider each sequence of vertices from Graph \(K\) in Figure 12.106 . Determine if it is only a walk, both a walk and a path, both a walk and a trail, all three, or none of these.

1. \(n \rightarrow q \rightarrow 0 \rightarrow p\)

2. \(p \rightarrow n \rightarrow q \rightarrow 0 \rightarrow n \rightarrow m\)

3. \(m \rightarrow n \rightarrow 0 \rightarrow p \rightarrow q\)